condition	mean	min	max
0 h after light	17.743250000000003	17.2372	18.2493
4 h after light	9.44262	7.19714	11.6881
8 h after light	9.14425	8.3153	9.9732
4 h after dark	12.230450000000001	11.4367	13.0242
8 h after dark	14.872250000000001	14.0363	15.7082
12 h after dark	14.09095	12.7342	15.4477